With the Kyoto Protocol in force since February 16, 2005, climate policy has gained new momentum. This range of policy simulations aims at examining strengths and weaknesses of alternative designs of global agreements to combat climate change after the Kyoto period 2008-2012.

• An overview on and the analysis of alternative climate policy architectures for the post-Kyoto period.
• The assessment of alternative climate policy targets for the post-Kyoto period.
• The identification and review of possible policy options for the post-Kyoto period.

A range of policy options was analysed by this task. In addition to the rather traditional policies, such as emissions trading, a variety of other policies was discussed, mainly based on stimulating technological innovation. Particular attention was given to carbon capture and (geological) storage (CCS). Since one of the main options was to store underground (rather than in the ocean), CCS affects water (acidification), which again has detrimental effects on soil and potentially biodiversity too. Thus CCS is a example for applying a multidimensional approach for assessing the complex implications from implementing this technology.

• Data Envelopment Analysis of Different Climate Policy Scenarios
• The WITCH Model. Structure, Baseline, Solutions

FEEM (lead), ECN, UniHH, UCD, ZEW